שינויים

Hundreds or even thousands of properties of rings were studied within Ring Theory. Sometimes it is known that every ring with properties A,and B,has property C is D as well; sometimes the problem is still open; and very often, it was settled down long ago by a clever counterexample which is only known to a handful of experts.

The main goal of this project is to collect non-trivial examples and present them in a way that is reasonably-easy to search manner.